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Anatomy Week 4 > Muscles of Posterior Thigh MT > Flashcards

Muscles of Posterior Thigh MT Flashcards

1
Q

Long head (biceps femoris) origin

A

Ischial tuberosity

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2
Q

Long head (biceps femoris) insertion

A

Head of the Fibula, lateral aspect

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3
Q

Long head (biceps femoris) innervation

A

Tibial N. (L4-S3)

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4
Q

Long head (biceps femoris) action

A

Flexion of Knee
Extension of Hip (weak)
Lateral Rotation of Tibia

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5
Q

Short head (biceps femoris) origin

A

Linea Aspera of Femur

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6
Q

Short head (biceps femoris) insertion

A

Head of the Fibula, Lateral aspect

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7
Q

Short head (biceps femoris) innervation

A

Common Fibular N. (L4-S2)

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8
Q

Short head (biceps femoris) action

A

Flexion of Knee
Extension of Hip (weak)
Lateral Rotation of Tibia

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9
Q

Semitendinosus origin

A

Ischial tuberosity

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10
Q

Semitendinosus insertion

A

Pes Anserinus (posterior slip)

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11
Q

Semitendinosus innervation

A

Tibial N. (L4-S3)

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12
Q

Semitendinosus action

A

Flexion of Knee
Extension of Hip (weak)
Medial Rotation of Tibia

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13
Q

Semimembranosus origin

A

Ischial Tuberosity

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14
Q

Semimembranosus insertion

A

Medial Aspect of the Tibial condyle

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15
Q

Semimembranosus innervation

A

Tibial N. (L4-S3)

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16
Q

Semimembranosus action

A

Flexion of Knee
Extension of Hip (weak)
Medial Rotation of Tibia

17
Q

What are the muscles of the posterior thigh?

A

Biceps femoris, semitendinosus, Semimembranosus

18
Q

What is the common origin of all of these muscles?

A

Ischial Tuberosity

19
Q

What is the common innervation of these muscles?

A

Tibial N

20
Q

What muscle does not originate at the ischial tuberosity or have innervation by tibial N?

A

Short head of biceps femoris

21
Q

What is a common function(s) of all posterior thigh muscles?

A

Flexion of the knee and weak hip extension

22
Q

What muscles of the posterior thigh act as medial rotators?

A

Semitendinosus and semimembranosus

Anatomy Week 4 (17 decks)

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